Intelligent cooking heating method and equipment based on multi-stage precise temperature control

Abstract

The invention discloses an intelligent cooking heating method and equipment based on multi-stage precise temperature control, the temperature control equipment comprises a heating bin, the heating bin comprises a plurality of heating coils, and the method comprises the following steps: if it is detected that an object to be cooked is put into the heating bin, identifying the type of the object to be cooked; determining a preset cooking mode according to the to-be-cooked type, and determining heating parameters of the heating coil in different cooking stages according to the preset cooking mode; and controlling the heating coil according to the heating parameters so as to enable the heating bin to cook the to-be-cooked object. The taste of the to-be-cooked object can be improved.

Description

Technical Field

[0001] The present invention relates to the field of cooking technology, and in particular to an intelligent cooking heating method and device based on multi-stage precise temperature control. Background Art

[0002] Temperature control devices can adjust the temperature to suit different cooking options, such as a rice cooker. However, current temperature control devices often heat unevenly, with large temperature differences between different areas. This results in uneven heating of the food, affecting the taste. Furthermore, current temperature control devices cannot adjust the cooking mode to suit different types of food, further reducing the taste. Summary of the Invention

[0003] The embodiments of the present invention provide an intelligent cooking heating method and device based on multi-stage precise temperature control, aiming to solve the problem of poor taste caused by uneven heating and inability of current temperature control equipment to adaptively adjust cooking modes.

[0004] In a first aspect, an embodiment of the present invention provides an intelligent cooking and heating method based on multi-stage precise temperature control, the method comprising:

[0005] If it is detected that food to be cooked is placed in the heating chamber, identifying the type of the food to be cooked;

[0006] Determining a preset cooking mode according to the type of food to be cooked, and determining heating parameters of the heating coil at different cooking stages according to the preset cooking mode;

[0007] The heating coil is controlled according to the heating parameters so that the heating chamber cooks the food to be cooked.

[0008] In a second aspect, an embodiment of the present invention further provides a temperature control device, configured with any of the above-described intelligent cooking and heating methods based on multi-stage precise temperature control, comprising a heating chamber, a storage chamber, a camera module, a light source module, and a control module; the heating chamber is used to heat food to be cooked, and the heating chamber is provided with multiple heating coils, the multiple heating coils including a bottom coil, a middle coil, and a top coil; the storage chamber is used to store the food to be cooked and calculate the density of the food to be cooked; the camera module is used to photograph the food to be cooked to obtain image data; the light source module is used to illuminate the food to be cooked to obtain the reflectivity of the food to be cooked; the control module is used to determine the type of the food to be cooked based on the density of the food to be cooked, the image data, and the reflectivity of the food to be cooked, determine heating parameters based on the type of the food to be cooked, and control the heating chamber to heat the food to be cooked based on the heating parameters.

[0009] Embodiments of the present invention provide an intelligent cooking and heating method and device based on multi-stage precise temperature control. The method includes: upon detecting that an item to be cooked is placed in the heating chamber, identifying the type of the item to be cooked; determining a preset cooking mode based on the type of food to be cooked, and determining the heating parameters of the heating coil at different cooking stages based on the preset cooking mode; and controlling the heating coil based on the heating parameters so that the heating chamber cooks the food to be cooked. Embodiments of the present invention can adjust the preset cooking mode based on the type of food to be cooked, thereby achieving adaptive adjustment of the cooking mode. Furthermore, each preset cooking mode includes heating parameters for different cooking stages, allowing for staged adjustment of the heating coil's heating parameters to ensure even heating of the food to be cooked, thereby improving the taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a flow chart of an intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the first sub-process of the intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of the second sub-flow of the intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention;

[0014] Figure 4 This is a schematic diagram of the third sub-flow of the intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention;

[0015] Figure 5 This is a schematic diagram of the fourth sub-flow of the intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention;

[0016] Figure 6 This is a schematic diagram of the fifth sub-flow of the intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention;

[0017] Figure 7 This is a schematic diagram of the sixth sub-flow of the intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention;

[0018] Figure 8This is the seventh sub-process diagram of the intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] It will be understood that when used in this specification and the appended claims, the terms “include” and “comprising” indicate the presence of described features, integers, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components and / or groups thereof.

[0021] It should also be understood that the terminology used in this specification is for the purpose of describing specific embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should further be understood that the term "and / or" as used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, including and including these combinations.

[0022] See also Figure 1 , Figure 1 This is a flow chart of an intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention. The intelligent cooking and heating method based on multi-stage precise temperature control provided by an embodiment of the present invention can be applied to temperature control equipment. A preset cooking mode can be determined according to the type of food to be cooked, and heating parameters for different cooking stages can be determined according to the preset cooking mode. The heating coil can then be adjusted according to the heating parameters to achieve uniform heating of the food to be cooked and improve the taste. Figure 1 As shown, the method includes steps S100 to S120.

[0023] S100: If it is detected that food to be cooked is placed in the heating chamber, the type of the food to be cooked is identified.

[0024] In an embodiment of the present invention, the temperature control device may be an electric cooking device, such as an electric rice cooker. The following description uses an electric rice cooker as an example. The electric rice cooker may include a heating chamber for holding and heating food to be cooked. For example, the heating chamber may be the inner pot of the electric rice cooker. The heating chamber may include multiple heating coils, which may include a bottom coil, a middle coil, and a top coil.

[0025] The inner pot can be made of a five-layer composite material, for example, a stainless steel shell, an aluminum alloy heat-conducting layer, a high-purity ferromagnetic layer, a nano-ceramic non-stick coating, and a food-grade anti-fouling coating. Meanwhile, a bottom coil, a middle coil, and a top coil are arranged around the inner pot. For example, the bottom coil can cover 80% of the area of the bottom of the inner pot, the middle coil can cover the middle of the inner pot side wall, and the top coil can cover the top of the inner pot. The power of different coils can be different. Generally, the power of the bottom coil can be 1200W, the power of the middle coil can be 800W, and the power of the top coil can be 400W.

[0026] When it is detected that food to be cooked is placed in the heating chamber, the type of the food to be cooked is identified, for example, by the density, image and reflectivity of the food to be cooked. For electric rice cookers, the food to be cooked is usually rice, and the types of rice include but are not limited to polished rice, indica rice and brown rice.

[0027] S110: confirming a preset cooking mode according to the type of food to be cooked, and confirming heating parameters of the heating coil at different cooking stages according to the preset cooking mode.

[0028] In an embodiment of the present invention, the preset cooking mode is a cooking mode preset in advance based on the type of rice. Different cooking modes have different heating parameters, and the heating parameters are mainly used to control the heating coil to maintain the temperature of the inner pot at the target temperature. For example, if the temperature control device has preset japonica rice mode, indica rice mode, and brown rice mode for polished rice, indica rice, and brown rice, the preset cooking modes may include polished rice mode, indica rice mode, and brown rice mode. After the type of rice is confirmed, the cooking mode of the temperature control device is switched to a matching mode accordingly. For example, if the currently identified type of rice is polished rice, the cooking mode is switched to polished rice mode. It is understood that the types of rice are not limited to polished rice, brown rice, and indica rice, and the corresponding preset cooking modes are not limited to polished rice mode, indica rice mode, and brown rice mode. New cooking modes can be added based on user preferences.

[0029] When cooking rice, the cooking phase can be divided into the water absorption phase, the boiling phase, and the heat preservation phase. Each phase has different durations and can use different heating coils. The heating parameters mainly include the duration of each phase, the heating power of each heating coil, and the duty cycle. The heating coils are then controlled according to the heating parameters to achieve the desired cooking effect.

[0030] S120: Control the heating coil according to the heating parameters so that the heating chamber cooks the food to be cooked.

[0031] In an embodiment of the present invention, after the heating parameters are confirmed, the heating coils can be controlled in sequence. For example, the cooking stage may include a water absorption stage, a boiling stage, and a heat preservation stage, and the heating parameters may include a first heating parameter, a second heating parameter, and a third heating parameter. The first heating parameter mainly includes parameters related to the water absorption stage, the second heating parameter mainly includes parameters related to the boiling stage, and the third heating parameter mainly includes parameters related to the heat preservation stage. When the cooking stage is in the water absorption stage, the heating coil can be controlled according to the first heating parameter. When entering the boiling stage, the heating coil can be controlled according to the second heating parameter. When entering the heat preservation stage, the heating coil can be controlled according to the third heating parameter. This not only allows staged cooking, but also allows the temperature of different heating coils to be controlled individually to ensure uniform heating.

[0032] See also Figure 2 In some embodiments, such as the present embodiment, the intelligent cooking and heating method based on multi-stage precise temperature control further includes steps S130-S134.

[0033] S130, respectively acquiring the density of the object to be cooked, the reflectivity at a preset wavelength, and image data to obtain target density, target reflectivity, and target image data;

[0034] S131, constructing a feature vector according to the target density, the target reflectivity and the target image data;

[0035] S132, inputting the feature vector into a preset classification model so that the preset classification model outputs a probability distribution vector;

[0036] S133, if the probability corresponding to an element in the probability distribution vector is greater than or equal to a preset confidence level, confirming the type corresponding to the element as the type of the food to be cooked;

[0037] S134: If the probability distribution vector does not contain any element whose corresponding probability is greater than or equal to the preset confidence level, generate a prompt message to remind the user to manually select the type of the food to be cooked.

[0038] In the embodiment of the present invention, when identifying the type of the food to be cooked, the type of the food to be cooked may be comprehensively identified based on the density of the food to be cooked, the target reflectivity, and the image data. The temperature control equipment can pre-store preset parameters for different types of rice, for example, 1.1kg / L of japonica rice, 1.1kg / L of indica rice, and 1.5kg / L of brown rice. The grains of japonica rice are oval or round, short, wide and thick, mostly milky white in color, and have low transparency. The grains of indica rice are slender or oblong, and the length is usually more than 3 times the width. The color is mostly white, transparent or translucent. The grains of brown rice retain the outer germ and bran of the rice grain, are darker in color, and have longitudinal grooves on the surface. Under the irradiation of light with wavelengths of 860nm, 940nm and 1050nm, the reflectivity of japonica rice is 0.82, 0.45 and 0.78 respectively, the reflectivity of brown rice is 0.68, 0.71 and 0.65 respectively, and the reflectivity of indica rice is 0.80, 0.60 and 0.75 respectively.

[0039] A classification model can be constructed based on the above parameters, for example, a convolutional neural network classification model, which includes a reflectance spectrum, morphological parameters, and a density threshold. A feature vector is input into the classification model, and the classification model outputs a probability distribution vector of the rice type, wherein the feature vector includes three reflectances, densities, and image data. The probability distribution vector can include three elements, namely, indica rice, polished rice, and brown rice, and the sum of the probabilities of the three elements is 1, for example, 10% for indica rice, 20% for polished rice, and 70% for brown rice. When the probability of a certain element is less than the confidence level, the user needs to manually confirm the type of rice. When the probability of a certain element is greater than or equal to the confidence level, the rice type is output. For example, if the confidence level is 65%, the type of rice is confirmed to be brown rice.

[0040] See also Figure 3 In some embodiments, such as the present embodiment, the intelligent cooking and heating method based on multi-stage precise temperature control further includes steps S140-S141.

[0041] S140, obtaining the weight of the food to be cooked and the volume of the storage compartment of the temperature control device;

[0042] S141: Calculate the density of the food to be cooked according to the weight of the food to be cooked and the volume of the storage bin to obtain the target density.

[0043] In an embodiment of the present invention, a storage bin is used to store food to be cooked, such as rice. A user may place rice into the storage bin, and the temperature control device may calculate the density of the rice based on the volume of the storage bin and the weight of the rice. For example, the target density may be obtained by dividing the weight of the rice by the volume of the storage bin.

[0044] See also Figure 4In some embodiments, such as the present embodiment, the intelligent cooking and heating method based on multi-stage precise temperature control further includes steps S150-S151.

[0045] S150, controlling the light source module of the temperature control device to sequentially emit light of a first preset wavelength, light of a second preset wavelength, and light of a third preset wavelength;

[0046] S151 , respectively acquiring a first reflectivity, a second reflectivity, and a third reflectivity reflected by the food to be cooked to obtain the target reflectivity.

[0047] In an embodiment of the present invention, the temperature control device may be equipped with a light source module for illuminating the food to be cooked to determine its reflectivity. The light source module may include three infrared lamps with wavelengths of 850nm, 940nm, and 1050nm, respectively, and a photodiode detector for receiving reflected light. When rice is detected in the storage bin, the infrared lamps are controlled to illuminate the rice, and the reflected light is captured by the photodiode to determine the reflectivity. The reflectivity can be calculated according to the following formula:

[0048]

[0049] Among them, V white is the pre-measured white plate calibration value, V sample is the sample measurement value, V dark In addition, after obtaining the reflectivity, the reflectivity can be normalized to eliminate the influence of ambient light.

[0050] See also Figure 5 In some embodiments, such as the present embodiment, the intelligent cooking and heating method based on multi-stage precise temperature control further includes steps S160-S161.

[0051] S160, confirming a first duration of the water absorption stage, a first target heating coil to be heated, and a first heating power and a first duty cycle of the first target heating coil;

[0052] S161: Control the first target heating coil according to the first heating power and the first duty cycle so that the first target heating coil heats the food to be cooked in the water absorption stage.

[0053] In an embodiment of the present invention, the heating parameters for different types of rice can be different. For example, the first duration of japonica rice is 20 minutes, the temperature is 30°C, the first target heating coil is the middle coil, and the first duty cycle is 20%; the first duration of indica rice is 30 minutes, the temperature is 30°C, the first target heating coil is the middle coil, and the first duty cycle is 30%; the first duration of brown rice is 40 minutes, the temperature is 30°C, the first target heating coil is the middle coil, and the first duty cycle is 40%.

[0054] When it is confirmed that the type of rice is japonica rice, the preset cooking mode is switched to japonica rice mode, and the first duration is set to 20 minutes, the target temperature is 30°C, the first target heating coil is the middle coil, and the first duty cycle is 20%. Then, according to the above parameters, the middle coil is controlled to maintain the inner pot temperature at 30°C, and the duration is 20 minutes.

[0055] See also Figure 6 In some embodiments, such as the present embodiment, the intelligent cooking and heating method based on multi-stage precise temperature control further includes steps S170-S171.

[0056] S170, confirming the second duration of the boiling stage, the target total power, and the preset distribution ratio;

[0057] S171: Distribute the target total power according to the preset distribution ratio so that all the heating coils heat the food to be cooked during the boiling stage.

[0058] In an embodiment of the present invention, the second duration is the time of the boiling stage, for example, 20 minutes for polished rice, 30 minutes for indica rice, and 40 minutes for brown rice. The preset allocation ratio is the ratio of the power of the top coil, the middle coil, and the bottom coil, for example, the preset allocation ratio of polished rice is 1:2:3, the preset allocation ratio of indica rice is 2:2:4, and the preset allocation ratio of brown rice is 1:1:4. The target total power is the total power of the temperature control device. If it is 1500W, the power allocated by the top coil, the middle coil, and the bottom coil of polished rice is respectively 250W, 500W, 750W, the power allocated by the top coil, the middle coil, and the bottom coil of indica rice is respectively 375W, 375W, 1200W, and the power allocated by the top coil, the middle coil, and the bottom coil of brown rice is respectively 250W, 250W, 1000W.

[0059] See also Figure 7 In some embodiments, such as the present embodiment, the intelligent cooking and heating method based on multi-stage precise temperature control further includes steps S180-S181.

[0060] S180, confirming a third duration of the heat preservation stage, a second target heating coil to be heated, and a second heating power and a heating cycle of the second target heating coil;

[0061] S181: Control the second target heating coil according to the second heating power and the heating cycle so that the second target heating coil heats the food to be cooked in the heat preservation stage.

[0062] In an embodiment of the present invention, the third duration is the duration of the keep warm stage, and its specific time is set by the user. For example, the user can set the duration of the keep warm stage to 30 minutes, and the third duration of polished rice, indica rice, and brown rice is 30 minutes. In addition, the second target heating coil of polished rice, indica rice, and brown rice can all be the bottom coil, the second heating power can all be 200W, and the heating cycle can all be 10 seconds every 5 minutes. In the keep warm stage, the bottom coil heats the inner liner for 10 seconds every 5 minutes to maintain the temperature of the inner liner.

[0063] See also Figure 8 In some embodiments, such as the present embodiment, the intelligent cooking and heating method based on multi-stage precise temperature control further includes steps S190-S193.

[0064] S190, obtaining user feedback on the cooking result;

[0065] S191, if the feedback is relatively hard, reducing the duration of the boiling stage according to a preset step size;

[0066] S192, if the feedback is that the temperature is too soft, increasing the duration of the boiling stage according to a preset step size;

[0067] S193: If the feedback is moderate, the duration of the boiling stage is maintained unchanged.

[0068] In an embodiment of the present invention, the temperature control device can also adjust the duration of the cooking stage based on user feedback. For example, after each cooking is completed, a feedback page can be generated. The feedback page includes three options: hard, soft, and moderate. The user can select any one to submit feedback. When the feedback is hard, the duration of the boiling stage can be reduced according to the preset step size. When the feedback is soft, the duration of the boiling stage can be increased according to the preset step size. When the feedback is moderate, the duration of the boiling stage can be maintained unchanged. In addition, the user can also customize the increase or decrease of the duration of the boiling stage. The preset step size can be 1 minute, 2 minutes, or 5 minutes.

[0069] The present invention also provides a temperature control device, configured with the intelligent cooking and heating method based on multi-stage precise temperature control described in any one of the above embodiments, the temperature control device comprising a heating chamber, a storage chamber, a camera module, a light source module, and a control module; the heating chamber is used to heat food to be cooked, and the heating chamber is provided with a plurality of heating coils, the plurality of heating coils including a bottom coil, a middle coil, and a top coil; the storage chamber is used to store the food to be cooked and calculate the density of the food to be cooked; the camera module is used to photograph the food to be cooked to obtain image data; the light source module is used to illuminate the food to be cooked to obtain the reflectivity of the food to be cooked; the control module is used to determine the type of the food to be cooked based on the density of the food to be cooked, the image data, and the reflectivity of the food to be cooked, determine heating parameters based on the type of the food to be cooked, and control the heating chamber to heat the food to be cooked based on the heating parameters.

[0070] Specifically, the temperature control device can be an electric cooking device, such as an electric rice cooker. The following description will be made using an electric rice cooker as an example. The electric rice cooker can include a heating chamber, a storage chamber, a camera module, a light source module, and a control module. The heating chamber is used to hold and heat the food to be cooked. For example, the heating chamber can be the inner pot of the electric rice cooker. The heating chamber can include multiple heating coils, and the multiple heating coils can include a bottom coil, a middle coil, and a top coil, wherein the bottom coil can be a densely wound copper wire, the middle coil can be a sparsely wound copper wire, and the top coil can be an annular distribution.

[0071] The inner pot can be made of a five-layer composite material, for example, a stainless steel shell, an aluminum alloy heat-conducting layer, a high-purity ferromagnetic layer, a nano-ceramic non-stick coating, and a food-grade anti-fouling coating. Meanwhile, a bottom coil, a middle coil, and a top coil are arranged around the inner pot. For example, the bottom coil can cover 80% of the area of the bottom of the inner pot, the middle coil can cover the middle of the inner pot side wall, and the top coil can cover the top of the inner pot. The power of different coils can be different. Generally, the power of the bottom coil can be 1200W, the power of the middle coil can be 800W, and the power of the top coil can be 400W.

[0072] The storage bin is used to store food to be cooked. A camera module may also be provided in the bin to capture the food to be cooked within the bin and obtain image data. A light source module may also be provided in the bin to illuminate the food to be cooked and obtain its reflectivity. The light source module may include three infrared lamps with wavelengths of 850nm, 940nm, and 1050nm, respectively, and a photodiode detector to receive reflected light. When rice is detected in the bin, the infrared lamps are controlled to illuminate the rice, and the reflected light is captured by the photodiode to obtain the reflectivity. The reflectivity can be calculated using the following formula:

[0073]

[0074] Among them, V white is the pre-measured white plate calibration value, V sample is the sample measurement value, V dark In addition, after obtaining the reflectivity, the reflectivity can be normalized to eliminate the influence of ambient light.

[0075] The control module may include an MCU for controlling the operation of the temperature control device. It can determine the type of food to be cooked based on the density, image data and reflectivity of the food to be cooked, and then determine the heating parameters based on the type of food to be cooked, and control the heating chamber to heat the food to be cooked based on the heating parameters to achieve uniform heating.

[0076] The intelligent cooking and heating method and temperature control device based on multi-stage precise temperature control disclosed in the present invention can not only adjust the cooking parameters according to the type of food to be cooked, but also select different heating parameters in different cooking stages, thereby realizing individual control of the heating coil, and then achieving uniform heating of the food to be cooked, which can improve the taste.

[0077] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the above-mentioned temperature control equipment and each unit can refer to the corresponding description in the aforementioned method embodiment. For the convenience and brevity of the description, it will not be repeated here.

[0078] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0079] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, to the extent such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to encompass such changes and modifications.

[0080] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. An intelligent cooking and heating method based on multi-stage precise temperature control, characterized in that: Applied to a temperature control device, the temperature control device includes a heating chamber, the heating chamber includes a plurality of heating coils, and the method includes: If it is detected that food to be cooked is placed in the heating chamber, identifying the type of the food to be cooked; Determining a preset cooking mode according to the type of food to be cooked, and determining heating parameters of the heating coil at different cooking stages according to the preset cooking mode; The heating coil is controlled according to the heating parameters so that the heating chamber cooks the food to be cooked.

2. The method according to claim 1, wherein The method further comprises: respectively acquiring the density of the object to be cooked, the reflectivity at a preset wavelength, and image data to obtain target density, target reflectivity, and target image data; Constructing a feature vector according to the target density, the target reflectivity and the target image data; Inputting the feature vector into a preset classification model so that the preset classification model outputs a probability distribution vector; If the probability corresponding to an element in the probability distribution vector is greater than or equal to a preset confidence level, the type corresponding to the element is confirmed as the type of the food to be cooked.

3. The method according to claim 2, wherein The method further comprises: If the probability distribution vector does not contain any element whose corresponding probability is greater than or equal to the preset confidence level, a prompt message is generated to remind the user to manually select the type of the food to be cooked.

4. The method according to claim 2, wherein The method further comprises: Obtaining the weight of the food to be cooked and the volume of the storage compartment of the temperature control device; The density of the food to be cooked is calculated according to the weight of the food to be cooked and the volume of the storage bin to obtain the target density.

5. The method according to claim 2, wherein The method further comprises: Controlling the light source module of the temperature control device to sequentially emit light of a first preset wavelength, light of a second preset wavelength, and light of a third preset wavelength; The first reflectivity, the second reflectivity and the third reflectivity reflected by the food to be cooked are respectively acquired to obtain the target reflectivity.

6. The method according to claim 2, wherein The cooking stage includes a water absorption stage, a boiling stage, and a heat preservation stage, and the method includes: confirming a first duration of the water absorption phase, a first target heating coil to be heated, and a first heating power and a first duty cycle of the first target heating coil; The first target heating coil is controlled according to the first heating power and the first duty cycle so that the first target heating coil heats the food to be cooked in the water absorption stage.

7. The method according to claim 6, wherein The method comprises: confirming a second duration of the boiling stage, a target total power, and a preset distribution ratio; The target total power is distributed according to the preset distribution ratio so that all the heating coils heat the food to be cooked during the boiling stage.

8. The method according to claim 6, wherein The method comprises: confirming a third duration of the heat preservation stage, a second target heating coil to be heated, and a second heating power and a heating cycle of the second target heating coil; The second target heating coil is controlled according to the second heating power and the heating cycle so that the second target heating coil heats the object to be cooked in the keeping warm stage.

9. The method according to claim 6, wherein The method further comprises: Get user feedback on the cooking results; If the feedback is that the pressure is too high, reducing the duration of the boiling phase according to a preset step size; If the feedback is that the temperature is too soft, then increasing the duration of the boiling stage according to a preset step size; If the feedback is moderate, the duration of the boiling phase is maintained unchanged.

10. A temperature control device, characterized in that: The temperature control device is configured with the intelligent cooking and heating method based on multi-stage precise temperature control according to any one of claims 1 to 9, and the temperature control device includes: A heating chamber, for heating food to be cooked, wherein the heating chamber is provided with a plurality of heating coils, wherein the plurality of heating coils include a bottom coil, a middle coil and a top coil; a storage bin, the storage bin being used to store the food to be cooked and calculate the density of the food to be cooked; a camera module, the camera module being used to photograph the food to be cooked to obtain image data; a light source module, the light source module being used to illuminate the food to be cooked to obtain a reflectivity of the food to be cooked; A control module is configured to determine a type of the food to be cooked based on a density of the food to be cooked, the image data, and a reflectivity of the food to be cooked, determine heating parameters based on the type of the food to be cooked, and control the heating chamber to heat the food to be cooked based on the heating parameters.

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